Activation control device for the clutch packs of a hydraulic double clutch

Abstract

An activation control device for clutch packs of a hydraulic double clutch is described and illustrated, and in some embodiments comprises a first pressure line having a filling valve and leading from an oil pressure source to the first clutch pack; a second pressure line having a filling valve and leading from the oil pressure source to the second clutch pack; and first and second draining valves coupled to the first and second pressure lines, respectively, the first draining valve located between the filling valve of the first pressure line and the first clutch pack, and the second draining valve located between the filling valve of the second pressure line and the second clutch pack.

1. An activation control device for clutch packs of a hydraulic double clutch, the activation control device comprising:
 a first pressure line having a filling valve and leading from an oil pressure source to the first clutch pack, the first clutch pack actuatable by actuation of the filling valve of the first pressure line; 
 a second pressure line having a filling valve and leading from the oil pressure source to the second clutch pack, the second clutch rack actuatable by actuation of the filling valve of the second pressure line; and 
 first and second draining valves coupled to the first and second pressure lines, respectively, the first draining valve coupled in series between the filling valve of the first pressure line and the first clutch pack, and the second draining valve coupled in series between the filling valve of the second pressure line and the second clutch pack. 
 
   
   
     2. The activation control device of  claim 1 , wherein at least one of the filling valves is a proportional pressure reducing valve, and at least one of the draining valves is an on-off 3/2 valve. 
   
   
     3. The activation control device of  claim 1 , wherein each draining and filling valve has a respective spool, and wherein the diameters of the draining valve spools are larger than the diameters of the filling valve spools. 
   
   
     4. The activation control device of  claim 2 , wherein each draining and filling valve has a respective spool, and wherein the diameters of the draining valve spools are larger than the diameters of the filling valve spools. 
   
   
     5. The activation control device of  claim 1 , wherein each of the draining valves have a symmetric spool design. 
   
   
     6. The activation control device of  claim 2 , wherein each of the draining valves have a symmetric spool design. 
   
   
     7. The activation control device of  claim 3 , wherein each of the draining valves has a symmetric spool design. 
   
   
     8. The activation control device of  claim 1 , wherein each of the filling valves has an asymmetric spool design. 
   
   
     9. The activation control device of  claim 2 , wherein each of the filling valves has an asymmetric spool design. 
   
   
     10. The activation control device of  claim 3 , wherein each of the filling valves has an asymmetric spool design. 
   
   
     11. The activation control device of  claim 5 , wherein each of the filling valves has an asymmetric spool design. 
   
   
     12. The activation control device of  claim 1 , wherein the first and the second pressure lines are disposed in parallel, and branch from a common pressure line to the oil pressure source. 
   
   
     13. The activation control device of  claim 2 , wherein the first and the second pressure lines are disposed in parallel, and branch from a common pressure line to the oil pressure source. 
   
   
     14. The activation control device of  claim 3 , wherein the first and the second pressure lines are disposed in parallel, and branch from a common pressure line to the oil pressure source. 
   
   
     15. The activation control device of  claim 5 , wherein the first and the second pressure lines are disposed in parallel, and branch from a common pressure line to the oil pressure source. 
   
   
     16. The activation control device of  claim 8 , wherein the first and the second pressure lines are disposed in parallel, and branch from a common pressure line to the oil pressure source.